Hey back (and sorry for all people disturbing about that "I will soon do a purchase and soon price will go down that's why would know all information before purchase" )
So, first I would said thanks to everybody here I now understand about "nm" who is "frequence and wave about color"
but I...
Hi, My name is Yohann I'm 27 years old living in South of France (between Marseille and Toulon ) I'm new and would learn more about laser and this domain but nothing really correct in france. I just found your forums, so my english will not be perfect but I think it should be enough to let you...